xyz's user avatar
xyz's user avatar
xyz's user avatar
xyz
  • Member for 2 years, 11 months
  • Last seen this week
3 votes
Accepted

$\lvert d(x,a)-d(x,b)\rvert_{\infty}=d(a,b)$

2 votes
Accepted

How to conceive the difference between $l_1$ and $l_\infty$

2 votes

Problem understanding $\epsilon-\delta$ definition of continuity - a particular example.

2 votes
Accepted

Invertible transformations in $C[0,1]$ for spectral theory

2 votes

Exponentially distributed random variable

2 votes
Accepted

Proof that $(P \lor Q) \land \lnot(P \land Q) \equiv (P \land \lnot Q) \lor (Q \land \lnot P)$

2 votes
Accepted

Finding probability of strictrly less than, when expectance and variance are given

2 votes

How do I find the inverse of $y=2x^2+2x+2$

1 vote
Accepted

Proving two equal probability functions

1 vote

Solving ODE with initial condition, one step wrong

1 vote

Separable variables

1 vote

logical equivalence: (q ∧ p) ∨ ¬(q ∨ ¬q) = p and q

1 vote

how to find the distribution and parameter given normal distribution?

1 vote
Accepted

Homogeneous Differential Equation y'=1/(y-x)

1 vote

Find the solution to the following differential equation $y'' - 4y' = 0$

1 vote
Accepted

Finding a formula for $\sum_{d|n} \tau(d)$, where $\tau(d)$ is the number of divisors of $d$.

1 vote

Why am I getting a different answer than my textbook in this question on Bayes theorem?

1 vote
Accepted

Prove that for every three sets A, B, and C we have (A ∪ B) ∩ C = (A ∩ C) ∪ (B ∩ C).

1 vote

How to prove the inequality easily?

1 vote

How do I prove the following identity: $\sin^3x + \cos^3x + \sin x\cos^2x + \sin^2x\cos x = \sin x+\cos x$

0 votes

How to prove $((p\to(q\to r))) \to ((p\to q)\to(p\to r))$ is tautology without truth table?

0 votes

On a property of equivalence classes

0 votes

Suppose that F is a non-empty family of sets, B is a set, and $\forall A\in F (A\subseteq B).$ Prove that $\cup F\subseteq B$

0 votes

What is the list of one member from each equivalence relation in this context?

0 votes

probability - short question

0 votes
Accepted

How to determine when to use Normal Approximation of binomial distribution?

0 votes

Let $X_1,X_2,...,X_n$ be a sequence of independent and identically distributed random variables from $U(-\sqrt{3},\sqrt{3})$.

0 votes
Accepted

Proving mathematical induction for equality

0 votes
Accepted

What is ln in limits

0 votes

What is this type of differentiation called?